Heel-finishing machine



Sept. 10, 1929. L. CITRA NO HEEL FINISHING MACHINE Original Fil ed March- 20, 1 924 2 Sheets-Sheet l gmnwto o,

abkoumq 3 Sept. 10, 1929. 1.. CIITRANO 1,727,633

HEEL FINISHING MACHINE Original Filed March 20, 1924 2 Sheets-Sheet 2 gvwemto o lauds 6267mm Patented Sept. 10, 1929.

PATENT OFFICE.

tours GI'IRANO, or HUNTSVILLE, ALABAMA.

HEEL-FINISHING MACHINE.

Application filed March 20, 1924, Serial No. 700,605. Renewed April 3; 1928.

The present invention relates to shoe machinery and particularly to heel finishing machines.

An object of the present invention is to 6 provide an abrading wheel construction for treating the heels of shoes which shall embody guard means for preventing the accidental abrading of other parts of a shoe.

Another object of the invention is to provide a guard for heel finishing machines, embodying a revolving abrading wheel, which shall afford a smooth abutting and guiding surface for the upper or other part of the shoe which is not intended to contact with the abrading wheel.

A further object of the invention is to provide such a guard for rotating heel abrading wheels which shall be capable of fine adjustment across the abrading face of the wheel to vary the amount of abrading surface exposed for action on the shoe heel.

A still further object of the invention is to provide such a guard for heel finishing machines which can readily be applied to heel finishing machines now in use without modification.

Other objects and advantages of the invention will appear from the following description, taken in connection with the accompanying drawings which illustrate a preferred embodiment of the invention, and in which:

Figure 1 is a sectional axial elevation of a heel trimmer embodying the present invention' r Ffgure 2 is a side elevation of an abrading wheel;

Figure 3 is a sectional view of the abrading wheel taken on line 3-3 of Figure 2;

Figure 4 is an end elevation of one of the abrading wheel clamping collars;

Figure 5 is an edge elevation thereof;

Figure 6 is a sectional elevation through the abrading wheel guard, and

Figure 7 is a fragmentary view illustrating the abrading wheel guard, assembled on the abrading wheel shaft.

Referring in detail to the drawings, an

abrading wheel 11 is mounted on the revoluble shaft 12 and is fixed thereon to rotate therewith by any connecting or desirable securing means, such for example as the abrading wheel collars 18.

The abrading wheel proper may be made in'sections as illustrated inFigure 2and may i have the conical peripheral portion 14 upon which .may be mounted the conforming abrading surface 15. The abrading Wheel is shown as being divided into a large section 11, including morethan one-half of the wheel and a small section 16, including the remaining portions. The small section 16 may be provided on its smaller face with the peripherally extending flange 17 to limit the axial movement of the abrading member proper which abuts this flange when it is assembled on the abrading wheel- The abrading surface proper is preferably formed in one piece to present an unbroken abrading surface, and it may be assembled on the abrading wheel by placing the larger section 11 within it so that the peripheral surface fits snugly against it and theflange 17 abuts against the edge ofthe abrading member. The smaller section 16 of the abrading'wheel may then be inserted in the opening, thus left for it, and may be clamped in position by a key 18 or other suitable means. I

The abrading wheel may then be mounted on the shaft 12 with one of the collars 13 located on each side thereof and abutting thereagainst with the pin 19 engaging the sockets 20'provided in the face of the abrading wheel collars to insure that the abrading wheel will rotate .Wit-hsaid collars when the shaft 12 is revolved.

Each of the abrading wheel collars 13 Wlll be clamped to the shaft 12 by any convenient means, such for example as the set screws 22.

A guard bushing 23 may be mounted on the shaft 12 and maybe fixed thereto by the set screw 24 or other convenient clamping means and is preferably externally screw threaded, as indicated at '25 for the reception of and engagement with the internally screw threaded guard 26. The guard 26 is shown as being substantially bell shaped and provided with the flaring abrading whee] 100 receiving portion 27, and provided at its outermost end with a peripheral flange 28 forming a flat smooth shoe engaging guiding and limiting portion 29. The guard 26 is provided with a set screw 30 or other means for fixing it in adjusted position on the bushing 23.

The operation of the device is as follows: When it is desired to trim the heel of any particular shoe the operator loosens the set screw 30 and by rotating the guard 26 on the bushing 23 adjusts it axially toward or away from the abrading wheel. 7

Thus, the exposed portion of the abrading surface depends on the height, size and shape of the particular heel which it is desired to trim. When the guard is properly adjusted with respect to the abrading wheel, it is clamped to the bushing 23 by the set screw 30 to insure that its position with respect to the abrading wheel will not be changed. The operator may then trim the heel, using the flat face 29 as an abutment to prevent the shoe from sliding across the abrading surface and marring the appearance of the shoe, the flat face 29 also serving as a steadying abutment for the shoe, thereby enabling the operator to perform his work with the highest skill and at the same time with the greatest ease and convenience.

It will be seen that by the foregoing construction there has been provided an abrading wheel construction which permits the operator to vary at will the amount of exposed acting abrading surface; which provides a smooth adjustable abutment for a shoe, limiting its possible contact with the abrading surface; which can be quickly and readily adjusted to suit various kinds, sizes, heights and shapes of shoe heels; and which can be readily and quickly applied to machines now in use without modification.

What is claimed is:

1. In a heel finishing device, a shaft, an abrading wheel mounted thereon comprising a frusto-conical disk divided into two ing member adapted to be arranged upon said sect-ions, a peripheral flange integral with the smaller segmental section and positioned at the smaller end of the cone to retain the abrading member in position, means to key the sections together, and a guard mounted on said shaft to rotate with the wheel andhaving a portion adapted to extend over said abrading surface of said abrading wheel and, being of a shape corresponding "to the" shape of the abrading member and having a circumferential end heel guiding flange adjacent said member.

In testimony whereof I aflix my signature.

LOUIS CITRANO.

sections, the dividing line being spaced from I the center of the disk to form a large and a small segmental section of said disk, the

small section being less than half of the disk,

member adapted to be arranged upon said sections, a peripheral flange integral with the-smaller segmental section and positioned at the smaller end of the cone to retain the abrading member in position, and means to key the sections together. 7

2. In a heel finishing device, a shaft, an abrading wheel mounted thereon comprising a circumferential frusto-conical abrading a frusto-conical disk divided into two sections', the dividing line being spaced from the center of the disk to form a large and a small segmental section of said disk, the

small section being less than half of the 'disk,a circumferential frusto-conical abrad- 

